Hi sarah,
I started off using one of the saliva scopes since I couldn't do BBT because I wake up every few hours. I mentioned to my gyn about the fact I was using a scope and he said they're not always very accurate. I had fun looking at the ferns but for me I'd see them more than you are supposed to. That or I ovulated 10 times a month !

I started using OPKs that I bought online from Oracle Fertility. They were the cheapest I could find, plus they take paypal which is good for us.